CN212249917U - Rotary type fidelity corer experiment platform - Google Patents
Rotary type fidelity corer experiment platform Download PDFInfo
- Publication number
- CN212249917U CN212249917U CN202021033592.4U CN202021033592U CN212249917U CN 212249917 U CN212249917 U CN 212249917U CN 202021033592 U CN202021033592 U CN 202021033592U CN 212249917 U CN212249917 U CN 212249917U
- Authority
- CN
- China
- Prior art keywords
- cabin
- transmission mechanism
- rotary
- fidelity
- experiment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a rotation type fidelity corer experiment platform, including the box, be used for simulating the pressure experiment cabin of fidelity corer fidelity cabin and can make the box revolve at the horizontality and the vertical attitude within a definite time the change rotary driving mechanism, the pressure experiment cabin includes the cabin body, cabin body fixed mounting is inside the box. The rotary driving mechanism comprises a motor, a transmission mechanism, a movable block, a supporting arm and a support, and the bottom end of the box body is movably connected with the support; the transmission mechanism converts the rotary motion of the motor into the linear motion of the movable block, and two ends of the supporting arm are respectively movably connected with the movable block and the box body. The utility model discloses make things convenient for pressure experiment cabin to switch between horizontality, slope attitude and vertical attitude, can verify the pressurize performance of pressurize experiment cabin and the reliability of parts actions such as well as center rod, flap valve, core barrel under the perpendicular circumstances such as creep into, horizontal drilling, slope drilling, be convenient for verify the feasibility and the scientificity of design scheme to improve this fidelity cabin from structural, material.
Description
Technical Field
The utility model relates to a core device experimental system technical field especially relates to rotation type fidelity corer experiment platform.
Background
The characteristics of deep rock such as physical mechanics, chemical biology and the like are closely related to the in-situ environmental conditions, the in-situ environmental loss in the coring process can cause the distortion and the irreversible change of the physicochemical property and the mechanical property of the rock core, and the key of the attack is how to obtain the in-situ rock core under the deep environmental conditions and carry out real-time loading test and analysis under the in-situ fidelity state.
At present, in-situ fidelity coring devices store rock cores in a fidelity cabin after the rock cores are drilled by a drilling tool, and then perform pressure maintaining sealing on samples through a pressure maintaining control device of the fidelity cabin.
The pressure maintaining performance of the fidelity chamber needs to be continuously verified and improved through experiments, so that the pressure experiment chamber for simulating the fidelity chamber of the fidelity corer is produced. However, the existing pressure experiment chambers can only carry out experiments in one fixed position. In actual exploration work, the conditions of vertical drilling, horizontal drilling, inclined drilling and the like exist, so that the existing pressure experiment chamber cannot meet the requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing rotation type fidelity corer experiment platform is convenient for verify the pressurize performance and the reliability of each part of pressurize experiment cabin under the circumstances such as creep into perpendicularly, horizontal drilling, slope drilling.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
rotation type fidelity corer experiment platform, including the box, be used for simulating the pressure experiment cabin of fidelity corer fidelity cabin and can make the box is rotatory to vertical attitude or from vertical attitude to the rotation driving mechanism of horizontal attitude from the horizontality, the pressure experiment cabin includes the cabin body, cabin body fixed mounting is inside the box.
Furthermore, the rotary driving mechanism comprises a motor, a transmission mechanism, a movable block, a supporting arm and a support, and the bottom end of the box body is movably connected with the support;
the transmission mechanism converts the rotary motion of the motor into the linear motion of the movable block, one end of the supporting arm is movably connected with the movable block, and the other end of the supporting arm is movably connected with the box body.
Furthermore, the transmission mechanism is a ball screw transmission mechanism, a screw of the ball screw transmission mechanism is connected with the motor, and the movable block is a screw nut of the ball screw transmission mechanism.
Or the transmission mechanism is a gear and rack transmission mechanism, a gear of the gear and rack transmission mechanism is connected with the motor, and the movable block is fixedly arranged on a rack of the gear and rack transmission mechanism.
Preferably, the other end of the supporting arm is movably connected with the lower part of the box body.
Preferably, the movable connection is a hinge connection.
The rotary type fidelity coring device experiment platform further comprises a linear driving mechanism which is used for driving a central rod of the pressure experiment chamber to move axially, the linear driving mechanism is fixedly installed outside the box body, and an output part of the linear driving mechanism is connected with the central rod to drive the central rod to move axially and linearly.
Furthermore, a tension testing device is arranged between the output part of the linear driving mechanism and the central rod.
Preferably, the linear driving mechanism is a cylinder, an oil cylinder or a linear motor.
Furthermore, a medium inlet and a medium outlet are arranged on the box body.
Compared with the prior art, the utility model discloses following beneficial effect has:
1, the utility model discloses make things convenient for the pressure experiment cabin to switch between horizontality, tilt state and vertical attitude, can verify the pressurize performance of pressurize experiment cabin and the reliability of parts action such as center rod, flap valve, core barrel under the circumstances such as vertical drilling, horizontal drilling, tilt drilling, be convenient for verify the feasibility and the scientificity of design scheme to improve this fidelity cabin from structural, material;
2, the utility model arranges a tension testing device between the driving mechanism and the central rod, which can verify the sealing effect of the pressure maintaining experiment chamber under different tension conditions;
3, the utility model discloses utilize the intermediate junction spare to link up the upper end and the lower extreme in pressurize experiment cabin, can avoid boring on the pressurize experiment cabin, prevent to cause the harm to pressurize experiment cabin, therefore can restore the pressure environment of test piece for the test result is truer, does benefit to the accuracy that improves the experiment.
Drawings
FIG. 1 is a cross-sectional view of the present invention in a horizontal position with the mounting base not shown;
fig. 2 is a cross-sectional view of the present invention in an upright position with the mounting base not shown;
FIG. 3 is a schematic structural view of the present invention in a horizontal position showing the mounting seat;
FIG. 4 is a schematic view of the configuration of the holding pressure experiment chamber when the center pole is not lifted;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a schematic view of the configuration of the holding pressure test chamber when the center pole is lifted to the end of travel;
FIG. 7 is a partial enlarged view at B in FIG. 6;
FIG. 8 is a schematic view of the holding pressure experiment chamber when the outer cylinder is disassembled into an upper part and a lower part;
FIG. 9 is a schematic view of the construction of the intermediate link;
FIG. 10 is a schematic view of the pressure experiment chamber in the second embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
Detailed description of the invention
As shown in fig. 1, 2 and 3, the utility model discloses a rotary type fidelity corer experiment platform, including box 8, be used for simulating the pressure experiment cabin 10 of fidelity corer fidelity cabin, can make box 8 is rotatory to vertical attitude or is rotatory to the rotary driving mechanism 6 and the straight line actuating mechanism 7 of horizontal attitude from vertical attitude from the horizontal attitude. The pressure experiment chamber 10 comprises a chamber body and a central rod 2. The box body 8 is an explosion-proof box, a mounting seat 80 is arranged in the box body 8, and the cabin body is fixed on the mounting seat 80.
The rotary driving mechanism 6 comprises a motor 61, a transmission mechanism, a movable block, a supporting arm 65 and a support 64, and the bottom end of the box body 8 is movably connected with the support 64.
The transmission mechanism converts the rotary motion of the motor 61 into the linear motion of the movable block 63, one end of the supporting arm 65 is movably connected with the movable block, and the other end of the supporting arm 65 is movably connected with the box body 8. The connection position of the support arm 65 and the box body 8 is set as required, and in the embodiment, the support arm 65 is movably connected with the lower part of the box body 8. The movable connection mode is various, and the hinge connection is adopted in the embodiment.
There are many transmission mechanisms that convert rotational motion into linear motion. In this embodiment, the transmission mechanism is a ball screw transmission mechanism, a screw 62 of the ball screw transmission mechanism is connected to a motor 61, and the movable block is fixedly connected to a screw nut 63 of the ball screw transmission mechanism, or the movable block is the screw nut 63 itself.
In another embodiment, the transmission mechanism is a rack and pinion transmission mechanism, a gear of the rack and pinion transmission mechanism is connected with the motor 61, and the movable block is fixedly mounted on a rack of the rack and pinion transmission mechanism.
The linear driving mechanism 7 is fixedly installed outside the box body 8 and used for driving the central rod 2 of the pressure experiment chamber 10 to axially move, and a reserved hole is formed in the position, corresponding to the linear driving mechanism 7, of the box body 8. The output part of the linear driving mechanism 7 is connected with the central rod 2 to drive the central rod 2 to axially and linearly move.
A tension testing device 81 is arranged between the output part of the linear driving mechanism 7 and the central rod 2, so that the sealing effect of the pressure maintaining experiment chamber under different tension conditions can be verified;
the tensile testing means 81 may be a tension meter. The linear driving mechanism 7 can be a cylinder, an oil cylinder or a linear motor. Taking the linear driving mechanism 7 as an oil cylinder as an example, the cylinder body of the oil cylinder is fixedly connected with the outside of the box body 8, the output part of the oil cylinder is a piston rod, one end of the tension testing device 81 is in threaded connection with the piston rod, and the other end of the tension testing device 81 is in threaded connection with the central rod 2.
As shown in fig. 4-7, the pressure experiment chamber 10 in the present embodiment directly adopts a pressure maintaining experiment chamber, and the pressure maintaining experiment chamber includes an outer cylinder 1, a central rod 2, a core barrel 3 and a flap valve 5 for realizing the sealing closing of the lower end of the experiment chamber.
The pressure maintaining experiment chamber comprises an outer cylinder 1 which is a chamber body of the pressure experiment chamber 10. The outer cylinder 1 is formed by assembling a plurality of threaded sleeves and is used for simulating a drilling machine outer cylinder of the in-situ fidelity coring device. The flap valve 5 comprises a valve seat 51, a valve clack 52 and an elastic part 53, one end of the valve clack 52 is movably connected with the outer side wall of the upper end of the valve seat 51, and the top of the valve seat 51 is provided with a valve port sealing surface matched with the valve clack 52. The elastic member 53 is a spring or a torsion spring.
The lower end of the central rod 2 extends into the core barrel 3, the lower end of the central rod 2 is provided with an outer step 23, the upper end of the core barrel 3 is provided with an inner step 32 matched with the outer step 23, and when the central rod 2 is lifted upwards until the outer step 23 abuts against the inner step 32, the central rod 2 can drive the core barrel 3 to move upwards synchronously. Meanwhile, due to the abutting of the outer step 23 and the inner step 32, sealing can be formed between the outer wall of the central rod 2 and the inner wall of the core barrel 3 at the abutting part. The sealing properties of the abutment are related to the axial pressure between the core rod 2 and the core barrel 3. The axial pressure between the central rod 2 and the core barrel 3 is determined by the tension exerted on the central rod 2. The tensile force applied to the center rod 2 can be tested by the tensile force testing device 81, and the sealing performance of the pressure experiment chamber 10 under different tensile force conditions can be verified.
As shown in fig. 4 and 5, in the initial state, the core barrel 3 is positioned at the lower end of the outer cylinder 1 and in the valve seat 51. When the core barrel 3 is positioned in the valve seat 51, the valve flap 52 is opened by 90 ° and is positioned between the core barrel 3 and the outer barrel 1; when the core barrel 3 is lifted upwards to a certain height by the central rod 2, the valve clack 52 returns to the top surface of the valve seat 51 under the action of the elastic element 53 and gravity to be in sealing contact with the valve port sealing surface, and the valve is closed.
As shown in fig. 6 and 7, when the central rod 2 continues to be lifted upwards to the end of the stroke, the outer wall of the upper end of the core barrel 3 is in sealing fit with the inner wall of the outer barrel 1. Two sealing rings 22 are arranged on the outer wall of the upper end of the core barrel 3 to realize the sealing with the barrel wall of the outer barrel 1. At this time, the outer wall of the central rod 2 and the inner wall of the core barrel 3 form a seal at the abutting part of the outer step 23 and the inner step 32, thereby completing the sealing of the upper end of the outer barrel 1. The lower end of the outer cylinder 1 is closed by a flap valve 5, so that a sealed space for storing a rock core is formed in the outer cylinder 1.
The inner wall of the outer barrel 1 is provided with a first limiting step 16 for axially limiting the core barrel 3, and when the upper end surface 21 of the core barrel abuts against the first limiting step 16, the center rod 2 is lifted to the stroke end point.
In order to increase the sealing specific pressure of the flap valve 5, the pressure maintaining experiment chamber further comprises a trigger mechanism 4, the trigger mechanism 4 comprises a trigger inner cylinder 41, a trigger block 42 and a trigger spring 43, a through hole is formed in the side wall of the trigger inner cylinder 41, the trigger block 42 is placed in the through hole, and a protruding portion 31 matched with the trigger block 42 is arranged on the outer side wall of the bottom of the core cylinder 3; the inner wall of the outer cylinder 1 is provided with an avoiding opening 15 matched with the trigger block 42, the trigger block 42 is positioned above the valve clack 52, and the avoiding opening 15 is positioned above the trigger block 42. The bottom of the avoiding opening 15 is provided with a guiding inclined plane which is convenient for the trigger block 42 to slide into the avoiding opening 15 from bottom to top and is also convenient for the trigger block 42 to slide out of the avoiding opening 15 from top to bottom.
The trigger spring 43 is sleeved outside the trigger inner cylinder 41, the outer wall of the trigger inner cylinder 41 is provided with a shoulder 44, the trigger spring 43 is compressed between the shoulder 44 and the step surface of the inner wall of the outer cylinder 1, and the trigger spring 43 is positioned above the trigger block 42;
when the core barrel 3 is positioned in the valve seat 51, the trigger inner barrel 41 is positioned between the core barrel 3 and the outer barrel 1, the lower end of the trigger inner barrel 41 is matched with a spigot of the valve seat 51, and the trigger block 42 protrudes out of the inner side wall of the trigger inner barrel 41;
when the core barrel 3 is lifted upwards to the first height, the convex part 31 of the core barrel 3 supports against the trigger block 42, so that the trigger inner barrel 41 can be driven to move upwards synchronously;
when the core barrel 3 is continuously lifted upwards to the second height, the trigger block 42 is pushed into the avoidance port 15 by the convex portion 31, so that the trigger block 42 avoids the convex portion 31;
when the core barrel 3 is lifted up to the bottom of the core barrel 3 to cross the avoidance port 15, the trigger block 42 loses the acting force of the core barrel 3, and the trigger inner cylinder 41 drives the trigger block 42 to fall back to press the closed valve clack 52 under the action of gravity and the trigger spring 43.
In order to perform the pressure-proof test, a high-pressure liquid needs to be injected into the holding pressure test chamber. This embodiment requires a drilling machine to drill a hole in the side wall of the outer cylinder 1 as the liquid injection hole 14 to achieve connection with the hydraulic line. To facilitate connection to the fluid line, the fluid injection port 14 is a threaded hole. Certainly, the box body 8 is provided with a reserved hole for the experiment pipeline to pass through.
In another embodiment, in order to realize the simulation of the in-situ environment temperature, a medium inlet and a medium outlet are arranged on the box body 8, and the pressure experiment chamber 10 can be heated or cooled by injecting a medium with a certain temperature into the box body 8 so as to simulate the in-situ environment temperature.
Detailed description of the invention
In the first embodiment, the pressure-maintaining and compacting test chamber is connected with a hydraulic pipeline by drilling a hole in the cylinder wall, and the drilling of the drilling machine can damage the pressure-maintaining test chamber, so that the test result is not real.
As shown in fig. 8, 9 and 10, the chamber body in the present embodiment includes a first experimental part 11, a second experimental part 12 and an intermediate connecting member 13, the first experimental part 11 is the upper end of the outer cylinder 1 of the holding pressure experiment chamber, the second experimental part 12 is the lower end of the outer cylinder 1 of the holding pressure experiment chamber, and the intermediate connecting member 13 is a cylindrical structure; first experiment piece 11 links to each other through middle connecting piece 13 with second experiment piece 12, and liquid filling hole 14 is located on the section of thick bamboo wall of middle connecting piece 13 for external hydraulic pressure source, thereby can avoid drilling on the experiment piece, prevent to cause the harm to the experiment piece.
As shown in fig. 8, in the present embodiment, the outer cylinder 1 of the holding pressure test chamber is separated into a first test piece 11 and a second test piece 12 from the screw joint of the outer cylinder 1. The first limit step 16 is positioned on the first test piece 11, and the flap valve 5 and the trigger mechanism 4 are positioned on the second test piece 12. When the central rod 2 is lifted to the stroke end, the outer wall of the upper end of the core barrel 3 is in sealing fit with the inner wall of the first test piece 11.
One end of the middle connecting piece 13 is an internal thread, and the other end is an external thread, so as to realize the threaded connection with the first experimental piece 11 and the second experimental piece 12. And sealing rings are arranged between the middle connecting piece 13 and the first experimental piece 11 and the second experimental piece 12, and the sealing performance can be improved by the thread sealing and the sealing of the sealing rings.
This embodiment utilizes the intermediate junction spare to link up the upper end and the lower extreme in pressurize experiment cabin, can avoid holing on the pressurize test cabin, prevents to cause the harm to pressurize experiment cabin, therefore can restore the pressure environment of test piece for the test result is truer.
Of course, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and that such changes and modifications are intended to be included within the scope of the appended claims.
Claims (10)
1. Rotation type fidelity corer experiment platform, including the pressure experiment cabin that is used for simulating the fidelity cabin of fidelity corer, the pressure experiment cabin includes the cabin body, its characterized in that: the cabin body is fixedly arranged in the box body.
2. The rotary fidelity corer experiment platform of claim 1, wherein: the rotary driving mechanism comprises a motor, a transmission mechanism, a movable block, a supporting arm and a support, and the bottom end of the box body is movably connected with the support;
the transmission mechanism converts the rotary motion of the motor into the linear motion of the movable block, one end of the supporting arm is movably connected with the movable block, and the other end of the supporting arm is movably connected with the box body.
3. The rotary fidelity corer experiment platform of claim 2, wherein: the transmission mechanism is a ball screw transmission mechanism, a screw of the ball screw transmission mechanism is connected with the motor, and the movable block is a screw nut of the ball screw transmission mechanism.
4. The rotary fidelity corer experiment platform of claim 2, wherein: the transmission mechanism is a gear and rack transmission mechanism, a gear of the gear and rack transmission mechanism is connected with the motor, and the movable block is fixedly arranged on a rack of the gear and rack transmission mechanism.
5. The rotary fidelity corer experiment platform of claim 2, wherein: the other end of the supporting arm is movably connected with the lower part of the box body.
6. The rotary fidelity corer laboratory platform of claim 2, 3, 4 or 5, wherein: the movable connection is a hinge connection.
7. The rotary fidelity corer experiment platform of claim 1, wherein: the pressure experiment chamber further comprises a linear driving mechanism used for driving a central rod of the pressure experiment chamber to axially move, the linear driving mechanism is fixedly arranged outside the box body, and an output part of the linear driving mechanism is connected with the central rod to drive the central rod to axially and linearly move.
8. The rotary fidelity corer experiment platform of claim 7, wherein: and a tension testing device is arranged between the output part of the linear driving mechanism and the central rod.
9. The rotary fidelity corer experiment platform of claim 7 or 8, wherein: the linear driving mechanism is a cylinder, an oil cylinder or a linear motor.
10. The rotary fidelity corer experiment platform of claim 1 or 8, wherein: the box body is provided with a medium inlet and a medium outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021033592.4U CN212249917U (en) | 2020-06-08 | 2020-06-08 | Rotary type fidelity corer experiment platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021033592.4U CN212249917U (en) | 2020-06-08 | 2020-06-08 | Rotary type fidelity corer experiment platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212249917U true CN212249917U (en) | 2020-12-29 |
Family
ID=73978208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021033592.4U Active CN212249917U (en) | 2020-06-08 | 2020-06-08 | Rotary type fidelity corer experiment platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212249917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577184A (en) * | 2020-06-08 | 2020-08-25 | 四川大学 | Rotary type fidelity corer experiment platform |
-
2020
- 2020-06-08 CN CN202021033592.4U patent/CN212249917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577184A (en) * | 2020-06-08 | 2020-08-25 | 四川大学 | Rotary type fidelity corer experiment platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111577184A (en) | Rotary type fidelity corer experiment platform | |
| CN103543092B (en) | The rock core fastener of the complicated migration process of a kind of simulated formation fluid and using method thereof | |
| CN112360432B (en) | Gap simulation mechanism, gap simulation experiment instrument and leaking stoppage evaluation experiment device | |
| CN102297807B (en) | Tester for testing durability of material under high-pressure hydrogen environment | |
| CN104236817B (en) | A kind of plunger cylinder sleeve movable sealing performance test methods and device | |
| CN212249917U (en) | Rotary type fidelity corer experiment platform | |
| CN111550211A (en) | Oil bath type internal and external temperature control fidelity corer experiment platform | |
| CN110132499A (en) | Deep sea valve valve rod and filler two way seal RTA reliability test assembly and method | |
| CN112360390B (en) | Dynamic crack plugging evaluation experimental device and experimental method thereof | |
| CN207036599U (en) | A kind of test device that carbon dioxide replacement shale gas is utilized under multi- scenarios method effect | |
| CN111504699A (en) | Oil bath type temperature control fidelity corer experiment platform | |
| CN105699202A (en) | Hydraulic device for measuring parameters of rock mass mechanics | |
| CN212275287U (en) | Fidelity corer experimental apparatus based on multistage formula control by temperature change feedback | |
| CN113188791A (en) | High-low temperature pressure-torsion durability testing machine and testing method for simulating actual working conditions by sealing ring | |
| CN211954567U (en) | Intelligent central rod telescopic experiment platform | |
| CN111577185A (en) | Quick-connection type center rod pulling structure and split type fidelity corer pressure experiment structure | |
| CN116539446A (en) | Press-torsion composite loading test stand under flexible drill rod bending state | |
| CN206270178U (en) | A kind of many stress path rock hollow cylinder torsional shear instrument of torque feedback type | |
| CN212249916U (en) | Oil bath type based internal and external temperature control fidelity corer experiment platform | |
| CN204115987U (en) | A kind of plunger cylinder sleeve motive seal performance testing device | |
| CN111624027A (en) | Intelligent assembly platform and assembly method for simulation test device of fidelity coring device | |
| CN212428671U (en) | Quick-connection type center rod pulling structure and split type fidelity corer experiment structure | |
| CN214748854U (en) | High-low temperature pressure torsion endurance testing machine for simulating actual working conditions of sealing ring | |
| RU2305299C2 (en) | Seismic well probe | |
| CN212432590U (en) | Pressurization heating middleware and split type fidelity corer intracavity temperature control structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |